79. Let us, however, see whether the prophet does not say that that earth is to be worshipped which the Lord Jesus took upon Him in assuming flesh. And so, by footstool is understood earth, but by the earth the Flesh of Christ, which we this day also adore in the mysteries, and which the apostles, as we said above, adored in the Lord Jesus; for Christ is not divided but is one; nor, when He is adored as the Son of God, is He denied to have been born of the Virgin. Since, then, the mystery of the Incarnation is to be adored, and the Incarnation is the work of the Spirit, as it is written, “The Holy Spirit shall come upon thee, and the power of the Most High shall overshadow thee, and that Holy Thing Which shall be born of thee shall be called the Son of God,” without doubt the Holy Spirit also is to be adored, since He Who according to the flesh was born of the Holy Spirit is adored.